Renewable energyRenewable energy is a source of energy that can never be exhausted.
We can obtain renewable energy from the sun (solar energy), from the water (hydropower), from the wind (windmills), from hot dry rocks, magma, hot water springs (geothermal) and even from firewood, animal manure, crop residues and waste (Biomass).

Which of the largest 50 US cities provide citizens with the highest percentage of power produced from renewable energy? SustainLane Government (www.sustainlane.us) determined the percentage of each city’s electricity that comes from renewables such as solar, wind, geothermal, and small-scale hydro energy.

Renewable energy sources produce electricity with no global climate-changing greenhouse gas emissions or regional air pollution that comes from burning fossil fuels such as coal and natural gas. Renewable energy technologies also produce regional jobs while limiting the importation of energy from other nations.

Just over 33 percent of greenhouse gases produced in the United States came from electricity production in 2004, making it the leading category of such emissions over other areas such as transportation (27.9 percent), industry (19.6 percent) and agriculture (7 percent).

The leading cities in renewable energy could have an advantage in any upcoming federal or state regulations aimed at regulating or eliminating greenhouse gas emissions or developing renewable energy standards. If the greenhouse gases that cause climate change get priced, cities with strong renewable energy programs could save a lot of money in the long run and their economies could gain a tax advantage.

Oakland, California led the nation with 17 percent of its electricity being produced by energy sources such as solar, wind and geothermal energy. Oakland gets some of its wind energy power from one of the largest wind power generating facilities in the nation at nearby Altamont Pass.

San Francisco, Sacramento and San Jose tied for second with 12 percent of their electricity coming from renewable energy sources.

California cities rank high in general because of the state’s Renewable Portfolio Standard, which set minimal requirements in 2002 for utility purchases of renewable energy for the state’s electric grid. That standard requires a 20 percent renewable energy total for the state’s utilities by 2020.

Some U.S. cities have also set goals for increasing renewable energy ranging from Chicago’s 20 percent goal by 2010, to Portland, Oregon’s goal of obtaining 100 percent renewable energy by 2010.